Localizing-stethoscope.



D. 0.-?0SGATE.

' LOOALIZING STBTHOSGOPE.

AYPLIOATION FILED JULY 12, 1911.

1 ,O1 5', 1 63, Patented Jan. 16, 1912.-

Inventor by W l n /VM/ Attorneys cDLuMmA mANUmeM-n ux..\v^smNr.'ruN-. n. 1

Witnesses UNITED STATES PATENT OFFICE.

DANIEL O. FOSGATE, 0F CHICAG-G, ILLINOIS.

LOGALIZING-STETI-IOSCOPE.

To all whom 'it may concern:

Be .it known that I, DANIEL O. F oseA'rn, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Lo- Vcalming-Stethoscope, of which the following is a specification.

This invention relates to improvements in localizing stethoscopes, the primary object of the invention being the provision of an at: tachment or localizer adapted to be connected upon and inserted through the opening in a supplemental diaphragm of a stethoscope and have its inner end disposed in such relation to the main diaphragm, as to confine the vibrations within the localizer and thereby intensify the reproduction of the sound at the ear trumpet end of the stethoscope.

A further object of this invention is the provision of an attachment adapted to be connected to a stethoscope to centralize or intensify the sound waves acting upon the main diaphragm so that such sound may be minutely and particularly located, the said localizer being so formed and constructed as to cover a very small space and accentuate the vibrations at such point so as to magnify the same when conveyed to the diaphragm and finally to the ear trumpet.

lVith the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawings-Figure 1 is a perspective view of the complete stethoscope and localizer. Fig. 2 is a central sectional view taken through the transmitter thereof with the localizer in operable relation thereto. Fig. 3 is a rear plan view of the localizer detached. Fig. t is a section taken on line 4 4 of Fig. 3. Fig. 5 is a front elevation of the localizer.

Referring to the drawings, the numeral 1 designates the tubes carrying the ear trumpet 1, the flexible terminals of said tubes being connected to the transmitter body 8, which has connected to the threaded portions 4 the clamping ring 5 of the transmitter body. Disposed within the transmitter body is the main diaphragm 6 held 1n Specification of Letters Patent.

Application filed July 12, 1911.

Serial No. 638,191.

drical casing 9 having the concaved outery face 9 provided with the central orifice or aperture 10 which is .concentric with the periphery of the transmitter body. Substantially this construction is covered by the applicants former Patent No. 875,795 granted to him January 7, 1908, but in order to localize the vibrations and thereby intensify the undulations thereof upon the respective diaphragms, a localizer attachment is adapted to be mounted upon the casing 9 and this, as shown, comprises the disk or plate 11 provided with the oppositely extending right angled spring arms 1Q, which when thev device is in operable rela` tion assumes the position as shown in Figs. 1 and 2. The disk 11 is provided with the central orifice or aperture 13 and as the disk is made of a flexible material, the saine is snapped in place between the circumferential ribs or rims 14C of the localizing and sound conveying tube 15 whose inner end 16 is adapted to lie in Contact with the outer face of the main diaphragm 6 centrally thereof as clearly shown in Fig. 2. The outer portion as at 17 of the localizer tube 15 `is flared so as to provide thicker surrounding walls to the same and provide a better contacting surface to engage the point or portion of the body, and thereby confine the sounds better so that the vibrations caused thereby will be transmitted through the central bore of the localizing tube 15 and act upon the diaphragm 6.

From the foregoing description taken in connection with the drawings, it will be evident that this localizing device may be attached' to many forms of stethoscopes, and that by the use of the same with the capshaped portion 9 of the supplemental diaphragm 8 will provide a proper supporting means for the said localizer and permit the tube thereof to project through the central orifice of the supplemental diaphragm 8 and have its inner end 16 abut the central point of the main diaphragm 6, thus being placed quickly and readily in operable position so that a stethoscope with the localizer may be changed at will and produce an exceedingly delicate instrument and at the same time so confine sound vibrations at a given point i Patented Jan. 16,1912.

videdwith an integral localizing means without departing` from the spirit of this invention, but it is preferred to make the device an attachment, whereby the stethoMV scope may be used with or without the same, as desired What is claimed is: Y

l. In a stethoscope, a transmitter embodying a main diaphragm, a supplemental diaphragm provided with an outwardly projecting casing having a central orifice, and a localizer and sound intensiier removably attached to the supplement-al diaphragm and.

in contact with the main diaphragm through said central orifice.

2. In a stethoscope, a transmitter' embodying a main diaphragm, a supplemental diaphragm, provided with an outwardly project-ing casing having a central orifice, and a localizer and sound intensier detachably connected to the casing of the supplemental diaphragm and provided with a tube adapted to enter the cent-ral orifice thereoi1 and engage the main diaphragm.

' In testimony that I claim the foregoing as my own, I have hereto aiiixed my signature in the presence of two witnesses. DANIEL O. FOSGATE.

Titnesses H. A. EDGERTON, ROBERT WEs'roN.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents. i

Washington, D. C. 

